1297856304 has 80 divisors (see below), whose sum is σ = 3729939840. Its totient is φ = 432083520.

The previous prime is 1297856299. The next prime is 1297856311. The reversal of 1297856304 is 4036587921.

1297856304 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 8 + 5 + 630 + 4 = 666.

1297856304 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

1297856304 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1297856304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511519 + ... + 514049.

It is an arithmetic number, because the mean of its divisors is an integer number (46624248).

It is a 1-persistent number, because it is pandigital, but 2⋅1297856304 = 2595712608 is not.

Almost surely, 2^1297856304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297856304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864969920).

1297856304 is an abundant number, since it is smaller than the sum of its proper divisors (2432083536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297856304 is a wasteful number, since it uses less digits than its factorization.

1297856304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735 (or 3723 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1297856304 is about 36025.7727745013. The cubic root of 1297856304 is about 1090.7926518450.

The spelling of 1297856304 in words is "one billion, two hundred ninety-seven million, eight hundred fifty-six thousand, three hundred four".